HR: 0800h
AN: A51D-0814    [Abstracts]
TI: Detection and Classification of Polar Stratospheric Clouds for the 2003/2004 Arctic and 2004 Antarctic Winters Using POAM III and HALOE Satellite Data
AU: * Bardeen, C G
EM: bardeenc@colorado.edu
AF: Laboratory for Atmospheric and Space Physics, University Of Colorado UCB 392, Boulder, CO 80309-0392 United States
AU: Toon, O B
AF: Laboratory for Atmospheric and Space Physics, University Of Colorado UCB 392, Boulder, CO 80309-0392 United States
AU: Randall, C E
AF: Laboratory for Atmospheric and Space Physics, University Of Colorado UCB 392, Boulder, CO 80309-0392 United States
AU: Harvey, V L
AF: Laboratory for Atmospheric and Space Physics, University Of Colorado UCB 392, Boulder, CO 80309-0392 United States
AU: Fromm, M D
AF: Computational Physics, Inc., 8801 Braddock Road Suite 210, Springfield, VA 22151 United States
AU: Alfred, J
AF: Computational Physics, Inc., 8801 Braddock Road Suite 210, Springfield, VA 22151 United States
AU: Lumpe, J D
AF: Computational Physics, Inc., 8801 Braddock Road Suite 210, Springfield, VA 22151 United States
AU: Strawa, A W
AF: NASA Ames Research Center, MS 245-4, Moffett Field, CA 94035-1000 United States
AU: Hervig, M
AF: GATS, Inc., 65 So. Main, #5, Driggs, ID 83422 United States
AB: Measurements of aerosol extinction from the Polar Ozone and Aerosol Measurement (POAM) III and the Halogen Occultation Experiment (HALOE) satellite instruments during the 2003/2004 Arctic and the 2004 Antarctic winters are used to identify polar stratospheric clouds (PSCs). Techniques comparing the aerosol extinctions at multiple wavelengths are used to classify the clouds as either Type Ia or Type Ib. Type Ia are larger particles probably composed of nitric acid trihydrate (NAT), while Type Ib are smaller particles probably composed of super-cooled ternary solutions (STS). The characteristics of these PSCs are compared to results from previous years, and the appearance of Type Ia and Ib clouds are compared to results previously analyzed for the 1999/2000 Arctic winter. The capabilities of POAM III and HALOE to detect PSCs are compared. Recent results like these from solar occultation satellites can be used to validate the observations from instruments on newly launched satellites (e.g. Aura).
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0340 Middle atmosphere--composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting